.backstage-door{display:flex;align-items:center;gap:8px;background:none;border:0;color:var(--muted);font:inherit;font-size:12px;padding:12px;opacity:.7;cursor:pointer;text-decoration:none}.backstage-door svg{width:25px;height:25px;transition:transform .25s}.backstage-door:hover,.backstage-door:focus-visible{color:var(--gold);opacity:1}.backstage-door:hover svg{transform:rotate(-9deg)}.backstage-door:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:8px}
/* Full viewport page: the only scroll axis belongs to the photo rail. */
html:has(.backstage-page){height:100%;overflow:hidden;scrollbar-gutter:auto}.backstage-page{height:100vh;height:100dvh;overflow:hidden;display:flex;flex-direction:column;background:var(--paper);margin:0;overscroll-behavior:none}.backstage-page [hidden]{display:none!important}.backstage-page .icon-button{flex-shrink:0;text-decoration:none;cursor:pointer}.backstage-page .icon-button svg{width:21px;height:21px}.backstage-head{display:flex;align-items:center;gap:18px;padding:18px max(20px,env(safe-area-inset-right)) 18px max(20px,env(safe-area-inset-left));flex-shrink:0;min-width:0}.backstage-head h1{font-size:clamp(28px,3.4vw,48px);line-height:1;letter-spacing:-.045em;margin:0;min-width:0;font-weight:750}.backstage-actions{display:flex;gap:8px;margin-left:auto}.backstage-head .icon-button{width:42px;height:42px;border:0;background:transparent;color:var(--muted);border-radius:0}.backstage-head .icon-button:hover{background:var(--surface);color:var(--gold)}.backstage-wall{flex:1;min-height:0;max-width:none!important;width:100%;margin:0;padding:0 0 env(safe-area-inset-bottom)!important;position:relative;overflow:hidden}.backstage-viewport{height:100%;width:100%;overflow-x:auto;overflow-y:hidden;scrollbar-width:none;scroll-behavior:auto;touch-action:pan-x pinch-zoom;overscroll-behavior:none;cursor:grab;user-select:none;-webkit-user-select:none;outline-offset:-3px}.backstage-viewport::-webkit-scrollbar{display:none}.backstage-viewport.is-dragging{cursor:grabbing}.backstage-track{height:100%;display:flex;width:max-content}.backstage-group{height:100%;min-width:100vw;display:flex;gap:3px;padding-right:3px;flex-shrink:0}.backstage-column{display:grid;grid-template-rows:minmax(0,1fr);gap:3px;flex:1 0 auto;width:clamp(280px,43vw,780px);height:100%;min-height:0}.backstage-column.is-pair{grid-template-rows:repeat(2,minmax(0,1fr));width:clamp(200px,25vw,440px)}.backstage-tile{position:relative;min-height:0;overflow:hidden}.backstage-photo{display:block;width:100%;height:100%;padding:0;border:0;border-radius:0;background:var(--surface);overflow:hidden;cursor:inherit;touch-action:pan-x pinch-zoom}.backstage-photo img{width:100%;height:100%;object-fit:cover;display:block;pointer-events:none;-webkit-user-drag:none}.backstage-photo:focus-visible{outline:3px solid var(--gold);outline-offset:-5px}.backstage-nav{position:absolute;bottom:max(16px,env(safe-area-inset-bottom));right:max(16px,env(safe-area-inset-right));display:flex;gap:4px;pointer-events:none}.backstage-nav .icon-button{pointer-events:auto;border-radius:0;background:#17131b99;border:1px solid #fff4;color:#fff;font-size:28px;width:44px;height:44px;backdrop-filter:blur(10px)}#backstage-status{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);margin:0;padding:14px 20px;max-width:90vw;background:var(--surface);color:var(--ink);font-size:14px;line-height:1.6;text-align:center}#backstage-retry{position:absolute;top:65%;left:50%;transform:translateX(-50%);border:1px solid var(--line);background:var(--surface);color:var(--ink);padding:12px 18px;font:inherit}
#backstage-upload{width:min(480px,calc(100% - 28px));padding:24px;max-height:calc(100dvh - 28px)}#backstage-form h2{font-size:25px;margin:0 0 18px}#backstage-form label{display:grid;gap:8px;margin:12px 0;font-size:14px}#backstage-form input,#backstage-form select{width:100%;min-width:0;padding:12px;border:1px solid var(--line);border-radius:9px;background:var(--paper);color:var(--ink);font:inherit;font-size:16px}#backstage-form small{font-size:12px;color:var(--muted)}.backstage-form-actions{display:flex;gap:16px;margin-top:18px;flex-wrap:wrap}#backstage-cancel{border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:10px;padding:10px 18px;font:inherit}#backstage-upload-status{font-size:14px;line-height:1.6;color:var(--muted)}.backstage-page button:disabled{opacity:.5;cursor:wait}
/* Keep the image midpoint independent of captions and browser/frame clipping. */
#backstage-viewer-bounds{position:fixed;inset:0;pointer-events:none;opacity:0;z-index:-1}
#backstage-viewer{position:fixed;inset:auto;top:var(--viewer-top,0px);left:var(--viewer-left,0px);width:var(--viewer-width,100%);height:100vh;height:var(--viewer-height,100dvh);max-width:none;max-height:none;min-width:0;min-height:0;margin:0;padding:0;border:0;border-radius:0;box-sizing:border-box;background:transparent;box-shadow:none;overflow:hidden;touch-action:none;overscroll-behavior:none;isolation:isolate;--viewer-shade:1;--viewer-edge:max(28px,env(safe-area-inset-top,0px),calc(max(16px,env(safe-area-inset-bottom,0px)) + var(--viewer-caption-height,0px) + 16px));--viewer-side:max(12px,env(safe-area-inset-left,0px),env(safe-area-inset-right,0px))}
#backstage-viewer[open]{display:block;animation:none;transform:none}
#backstage-viewer::backdrop{background:transparent;backdrop-filter:none;-webkit-backdrop-filter:none;animation:none}
#backstage-viewer figure{position:absolute;inset:0;z-index:1;display:flex;align-items:center;justify-content:center;width:100%;height:100%;min-width:0;min-height:0;margin:0;padding:var(--viewer-edge) var(--viewer-side);box-sizing:border-box;text-align:center;pointer-events:none}
#backstage-full{display:block;flex:0 1 auto;width:auto;height:auto;max-width:100%;max-height:100%;min-width:0;min-height:0;margin:0;object-fit:contain;box-shadow:0 18px 64px #0007;cursor:grab;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none;touch-action:none;pointer-events:auto;transition:transform .28s cubic-bezier(.22,.7,.2,1);will-change:transform}
#backstage-full:focus{outline:none}
#backstage-full:focus-visible{outline:2px solid #f3d283;outline-offset:5px}
#backstage-caption{position:absolute;bottom:max(16px,env(safe-area-inset-bottom,0px));left:var(--viewer-side);right:var(--viewer-side);max-width:60ch;margin:0 auto;color:#eee5f2;font-size:13px;line-height:1.5;text-wrap:pretty;overflow-wrap:anywhere}
#backstage-caption:empty{display:none}
/* Animated light, drifting outlines and small sparks require no downloads. */
#backstage-viewer .viewer-atmosphere{position:absolute;inset:0;overflow:hidden;pointer-events:none;background:#100d13;opacity:var(--viewer-shade);transition:opacity .28s ease}
.viewer-glow,.viewer-orbit,.viewer-sparks{position:absolute;display:block;pointer-events:none}
.viewer-glow{width:min(760px,170vw);height:min(900px,120vh);border-radius:50%}
.viewer-glow-violet{top:-30%;left:-55%;background:radial-gradient(ellipse,#9866c457 0%,#71508d24 42%,transparent 70%)}
.viewer-glow-gold{right:-56%;bottom:-30%;background:radial-gradient(ellipse,#d4a34748 0%,#95744221 42%,transparent 70%)}
.viewer-orbit{width:clamp(260px,72vw,620px);aspect-ratio:1;border:1px solid #caa4e345;border-radius:50%}
.viewer-orbit::after{content:"";position:absolute;inset:19px;border:1px solid #caa4e325;border-radius:inherit}
.viewer-orbit-one{top:-11%;right:-35%;border-radius:44% 56% 53% 47%}
.viewer-orbit-two{bottom:-16%;left:-35%;border-color:#edcd8140;border-radius:28%;transform:rotate(24deg)}
.viewer-orbit-two::after{border-color:#edcd8126}
.viewer-sparks{inset:0}
.viewer-sparks i{position:absolute;width:3px;height:3px;left:12%;top:22%;border-radius:50%;background:#edce90;box-shadow:0 0 10px 2px #edce9040;opacity:.35}
.viewer-sparks i:nth-child(2){left:79%;top:16%;animation-delay:-2s!important}
.viewer-sparks i:nth-child(3){left:89%;top:73%;animation-delay:-5s!important}
.viewer-sparks i:nth-child(4){left:26%;top:84%;animation-delay:-7s!important}
.viewer-sparks i:nth-child(5){left:56%;top:92%;animation-delay:-4s!important;background:#caa4e3}
#backstage-viewer[open] .viewer-glow{animation:backstage-viewer-light 10s ease-in-out infinite alternate}
#backstage-viewer[open] .viewer-glow-gold{animation-duration:13s;animation-delay:-6s;animation-direction:alternate-reverse}
#backstage-viewer[open] .viewer-orbit{animation:backstage-viewer-orbit 18s ease-in-out infinite alternate}
#backstage-viewer[open] .viewer-orbit-two{animation-name:backstage-viewer-orbit-gold;animation-duration:22s;animation-delay:-11s}
#backstage-viewer[open] .viewer-sparks i{animation:backstage-viewer-spark 9s ease-in-out infinite}
@keyframes backstage-viewer-light{from{transform:translate3d(-28px,-32px,0) scale(.92);opacity:.6}to{transform:translate3d(56px,72px,0) scale(1.18);opacity:1}}
@keyframes backstage-viewer-orbit{from{transform:translate3d(8px,-24px,0) rotate(-18deg)}to{transform:translate3d(-40px,40px,0) rotate(36deg)}}
@keyframes backstage-viewer-orbit-gold{from{transform:translate3d(-6px,24px,0) rotate(8deg)}to{transform:translate3d(38px,-42px,0) rotate(58deg)}}
@keyframes backstage-viewer-spark{0%,100%{transform:translate3d(0,18px,0);opacity:0}40%,60%{opacity:.5}90%{transform:translate3d(14px,-52px,0);opacity:0}}
#backstage-viewer.is-dragging .viewer-atmosphere,#backstage-viewer.is-dragging #backstage-full{transition:none;cursor:grabbing}
#backstage-viewer.is-dismissing{pointer-events:none}
#backstage-viewer.is-dismissing #backstage-full{transition:transform .28s cubic-bezier(.2,.65,.35,1)}
#backstage-viewer.is-dismissing #backstage-caption{opacity:0}
@media(prefers-reduced-motion:reduce){#backstage-viewer .viewer-atmosphere,#backstage-full,#backstage-viewer.is-dismissing #backstage-full{transition:none}#backstage-viewer[open] .viewer-glow,#backstage-viewer[open] .viewer-orbit,#backstage-viewer[open] .viewer-sparks i{animation:none}}

@media(max-width:600px){.backstage-head{padding:12px 10px;gap:6px}.backstage-head h1{font-size:28px}.backstage-head .icon-button{width:36px;height:40px}.backstage-actions{gap:2px}.backstage-column{width:78vw}.backstage-column.is-pair{width:64vw}.backstage-group{gap:2px;padding-right:2px}.backstage-column{gap:2px}.backstage-nav{right:10px;bottom:12px}}
@media(prefers-reduced-motion:reduce){.backstage-door svg{transition:none}}

/* Compact touch mosaic: more photographs fit in the available phone viewport. */
@media(max-width:600px){
.backstage-head{padding:10px max(10px,env(safe-area-inset-right)) 10px max(10px,env(safe-area-inset-left));gap:6px}
.backstage-head h1{font-size:26px}
.backstage-column.is-compact{width:54vw;grid-template-rows:repeat(3,minmax(0,1fr));gap:2px}
.backstage-column.is-compact .is-featured{grid-row:span 2}
.backstage-column.is-compact.count-1{grid-template-rows:minmax(0,1fr)}
.backstage-column.is-compact.count-1 .is-featured{grid-row:auto}
.backstage-column.is-compact.count-2:has(>.is-featured){grid-template-rows:repeat(3,minmax(0,1fr))}
.backstage-column.is-compact.count-2:not(:has(>.is-featured)){grid-template-rows:repeat(2,minmax(0,1fr))}
}